Reciprocating closure for collapsible tubes with parallel guide flanges



P. D. MALYSZKO Jan. 20, 194

RECIPROCATING CLOSURE FOR COLLAPSIBLE TUBES WITH PARALLEL GUIDE FLANGESFiled March 5, 1944 Inventor Patented Jan. 20, 1948 BECIPROCATINGCIJGSURE FOR "COL- LAPSIBLE TUBES WIT-H 'PARALLEL GUIDE FLANGES Paul"Dl"Malys1k0," Portland, Oreg.

Application March 3, 1944;?SeriaPNO; 524 917 romm.

This invention relates to a an improved collapsible" tube of such typeasis used for" marketing 'a'nd subsequently dispensing toothpaste,shaving cream, and paste-like cosmeticsand has reference in particularto the neck and closure'construction; the closure beingpermanentlyattached to the neck to facilitate operation and to obviate thelikelihood of loss, thus accomplishing a result now generally sanctionedby manufacturers, retailers and users.

In carrying out the principles of the invention I have provided asimple, expedient and otherwise useful closure, the latter being of aslide type and so designed and mounted as to expedite handling andmanipulation thereof by a single hand of the user.

More specifically, I provide a collapsible tube having a discharge neckwith a dispensing port and a slidable closure, there being a, so-calledtongue and groove connection between the neck and the closure.

Other features and advantages of the invention will become more readilyapparent from the following description and the accompanyingillustrative drawings.

In the drawings, wherein like numerals are employed to designate likeparts throughout the views:

Figure 1 is a fragmentary sectional view showing a collapsible tube andan especially constructed discharge neck embodying the closure meansconstructed in accordance with the specific prin ciples of the instantinvention.

Figure 2 is a vertical section at right angles to Figure 1, this beingon the plane of the line 22 of Figure 1 looking in the direction of thearrows.

Figure 3 is a view like Figure 1 showing the slidable closure shovedfrom right to left to socalled open position,

Figure 4 is a top plan view of Figure 3.

Figure 5 is a section similar to Figure 2 but taken on the plane of theline 55 of Figure 1.

Referring now to the drawings by distinguishing reference numerals itwill be observed that the collapsible body is denoted by the numeral 6and this is provided with an integral discharge neck 1 closed for themain part by a partition or diaphragm 8, the latter being provided at apredetermined point with a relatively small ejection and clean dischargeslot 9. At one end of the partition is a projection l0 constituting adetent or keeper for releasable snap engagement in a. keeper seat llformed in the adjacent end portion of the slide closure l2. The closureis of gen- .2 eral "rectangular \block-like-for-mand provided; onopposite longitudinal "edges with .outstanding flanges l3 whichconstitute -keyingl ribs. =The neck is providedwith-apair:ofparallelflanges. I4

spaced. above thesweb or partition..;8: and defining therebetweenchannels --I 5- whichwconstitute ,key-

ways for slidable reception of the keys or ribs l3. The central portionof the slide is thickened and rounded off into convex form to provide ariser it which also functions as a finger-piece. It will be noted thatthe riser has its opposite ends somewhat indented as at I! to facilitatethe production of shoulders, that is, push shoulders for reception ofthe finger to be used in opening and closing the closure. The width ofthe closure is such that the lonigtudinal marginal edge portions thereofoverlie the top surfaces, that is, the exterior surfaces of the flangeHi. There is a formation as at I8 at one end of the slideway whichconstitutes a stop shoulder. It will be noticed too, that the right-handhalf portion of the closure is thickened to define a shoulder [9 tocoact with the top shoulder [8. This thickened part 25! rides inslidable contact with the diaphragm B. Incidentally the part 20 is theessential closure element in that it feeds across the slot 9 to closethe same as indicated in Figure 1. At this time the projection or detentl0 snaps into the keeper seat ll, Thus, the coacting elements It] and II serve to limit the sliding movement of the closure l2 in a directionfrom left to right (see Figure 1) Whereas the coacting shoulders l8 andI9 limit the sliding movement in the opposite direction as brought outin Figure 3. Hence, the closure is not only keyed to the neck but itssliding motion in opposite direction is properly checked. Consequently,it is slidably mounted in place against displacement. I P

It is thought that persons skilled in the art to which the inventionrelates will be able to obtain a clear understanding of the inventionafter considering the description in connection with thedrawings.Therefore, a more lengthy descrip-- port adjacent one end portion andbeing pro vided outwardly of said discharge port with an upstandingprojection constituting a detent, said diaphragm being provided at anopposite end with a riser constituting an abutment and stop shoulder,the neck outwardly of said diaphragm being provided with paralleloutstanding portions formed with inwardly projecting opposed parallelflanges, said flanges occupying a plane overlying the diaphragm, riser,and detent in outwardly spaced relation and defining an open-endedchannel-like closure assembling mount and guide tracks for said closure,a closure comprising an elongated block-like body disposed in thechannel between the guide tracks and having its inner surface inslidable contact with said diaphragm, said block being of a lengthcorresponding to the length of the channel, the underneath surface ofsaid block being fiat and in intimate movable contact with thediaphragm, and one-half portion of said underneath surface beingfashioned into a depending lug-like port-closing element,

said element also constituting a stop shoulder vided, intermediate itsouter top surface with a raised part having transversely curved endsforming finger recesses to facilitate grasping and slid ing the bodyfrom closed to open position, the opposite longitudinal perimeterportions of said body being provided with channels, the aforementionedflanges snugly fitting into said channels, and said channels defininginner and outer pairs of flanges, the latter having slidable contactwith said firstnamed flanges.

PAUL D. MALYSZKO.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 1,524,662 Layman Feb. 3, 19251,578,077 Courney Mar. 23, 1926 1,770,464 Donnelly et a1. July 15, 19301,975,967 Morrow Oct. 9, 193 2,008,001 Burnham July 16, 1935 2,099,289Anderson Nov. 16, 1937 2,141,572 Tucker Dec. 27, 1938 2,273,999 RuegerFeb. 24, 1942

